Electric battery



FIG. 1 is a perspective view of an electric battery showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a bottom view thereof; and

FIG. 7 is a left side elevation view thereof. 

The ornamental design for an electric battery, substantially as shown and described. 